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Forum: Event and Track Management
Re: Question TrackID (Takefumi Sora)
Date: 09 Jan, 2003
From: Vladimir Ivanchenko <Vladimir Ivanchenko>

On Wed, 8 Jan 2003, Takefumi Sora wrote:

> *** Discussion title: Event and Track Management
> Email replies to PublicHyperNews@slac.stanford.edu must include:
>   In-Reply-To: <"/eventtrackmanage/68"@geant4-hn.slac.stanford.edu>
>   Subject: ...change this to be about your reply.
> 
> Hi there
> 
> We usually get some useful information from prestep point.
> But when there are many tracks, I can not tell whose track information it is.
> 
> As far as I examined G4StepPoint class, there do not seem to
> be a fuction to get TrackID.
> 
> How can I extract TrackID information?
> 
> Takefumi SORA
> 

Hi,

TrackID is the member of G4Track, so you have to have an access to G4Track
somehow, for example, 

G4Step* step
int trackID = step->GetTrack()->GetTrackID();

VI

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